Cooling-jacket for internal-combustion engines



G. H. TAGGARD.

COOLING JACKET FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED JAN.17| 1920.

1 ,386, 38 1 Patented Aug. 2, 1921.

INVEN TOR. 650 4 6. 5 J4 7/;66/7AD 3 BY El/l/l/ll/ l/l/l/l/ ATTORNEYS.

ders UNITED .STATES GEORGE E. 'IAGGARD,

PATENT. OFFICE.

OF WALLA WALLA, WASHINGTON.

COOLING-JACKET FOR INTERNAL-COMBUSTION ENGINES.

Application filed January 17, 1920.

' To all whom it my concern.

Be it known that I, GEORGE H. TAGGARD, a citizen of the United States, residing at lValla Walla and State of Washington, have invented certain new and usefuT'Iinprovements in Cooling-Jackiets for Internal-Combustion Engines, of whichthe following is a specification.

This invention relates to a jacket to be applied to air cooled internal combustion engines forcooling purposes and has for its objects to provide a means that may be attached conveniently to an air cooled engine as a perfect cooling device.

A further object is to provide a means for forcing a current of air against and in a swirl about the cylinder of an internal conibustion engine.

A further object is to provide a means for supplying a current of air about the cyllnof an engine and upward wlth the air outlet terminating at the top of the cyllnders thereby providing an unobstructed and free exit.

With these and other objects in view reference is had to the accompanying drawings, in which Figure 1 is a side elevation of the device on the line l-1 of Fig. 2;

tom

I 5 centrally Fig. 2 is a plan view with the top removed; and j Fig. 3 is an enlarged view of one of the compartments showing direction of air currents. I p

Having reference to the drawmgs like numerals refer to like parts throughout and the numeral 1 refers to the outer jacket of the cooling jacket and is formed in the shape of a funnel with the relatively polntedend 2 at the rear of the engine and with the enlarged end 3 extending forward thereof and preferably resting against the front piece 4 which may have the form of the usual radiator.

Within the outer jacket is an inner jacket located between the side walls-of the outer acketand terminating at its forward end in a point 6 to more equally d1- vide the incoming air current. The botportion of the bell of the funnel may be slotted 7, as shown, in Fig. 2 .so that the jacket ma be conveniently passed over the fan 8 of tlie engine in installation, the usual fan being retained to assist the air current;

Specification of Letters Patent.

in the county of Walla Walla Patented Aug. 2, 1921. Serial N 0. 652,162.

7 and as the fan is directly in front of the above mentioned point 6 of the inner jacket the purpose of this point is now obvious.

With n the inner jacket are compartments 9, in this case each compartment being des gned to contain one cylinder 10 of the engine, it must here be understood however that each compartment may be of sufficient SlZe to encompass more than one cylinder where more than one cylinder is cast en bloc, in which case the vanes 11 would still, pref erably, encircle the cylinders spirally.

Each compartment is provided with closable openings 12 which in my preferred form are positioned one ahead of the center line of the cylinder with the corresponding opposite opening to the rear of the said center line in a manner to guide the inrushmg air around the cylinder in a swirl (as shown by the arrows in Fig. 3) and in the direction of the vanes which are designed to guide the air upward structed discharge at the upperend of the cylinder.

Each closable opening is provided with a closure 13 whereby the size of the opening may be regulated, the closures being hinged 14: to the device in any suitable manner, with a hinged joint 15 suitably ositioned on the closure and attached movably to a connect- 1ng rod 16 wherewith to manually operate the closures.

The closures by swinging outward, form with the wall of the outer jacket an air passage of variable and progressive'size as clearly shown in Fig. 2 are shown in the partly open position,.the progressive size of this opening providing the proper amount of air for each cylinder. In use the device is placed over the cylinders of the engine and with the engine running or with the car in motion the air enters the outer jacket and is divided by the pointed end of the inner jacket to flow on both sides of the inner jacket whence it is guided into and about the cylinders b the closures, which being of irregular length wall of the outer jacket form with the outer an air passage through which the air reaches the cylinders.

or closing the closures where the closures of air to cool the cylinder is obtainable at all times and by its unobstructed passage the air will )ass away from the cylinders in a highly e c'ient manner. c

Having thus described my invention I claim- 1. In a cooling jacket for internal combustion engines, an outer jacket, an inner jacket, partitions in said inner jacket forming compartments, said compartments extending from the bottom of said outer jacket to the top thereof and having both ends open, closable openings in the sides of said inner jacket, closures hingeably attached to said cooling jacket and operable against said closable openings, and a means for operating said closures through the walls of said outer jacket.

2. In a cooling jacket for internal combustion engines, a funnel shaped outer jacket, an inner jacket having a pointed for ward end, compartments in said inner jacket to register with the cylinders of said engine, said compartments being provided With op positely positioned closures, said closures being of variable size to form with the wall of said outer jacket an air passage of progressive size, and a means for operating said closures.

3. In a cooling jacket for internal combustion engines, a funnel shaped outer jacket having a relatively pointed rearward end and an enlarged forward end, an inner jacket centrally located in said outer jacket and provided with a-pointed forward end, compartments in said inner jacket, said compartments being provided with oppositely positioned closures with one of said closures positioned ahead of the center line of the cylinder of said engine and with its corresponding opposite closure positioned to the rear of said center line, said closures being of a size to form with the wall of said outer jacket, when said closures are in their open position, an air passage of progressive size, and a means for opening saidclosures.

In testimony whereof I affix my signature.

GEORGE H. TAGGARD. 

